The pH scale ________
A) measures the hydrogen ion concentration of a solution
B) defines neutral as a pH of 5
C) ranges from 1 to 7
D) measures the salt concentration of a solution
Answer: A
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Which is the best description for the function of the cranial bones?
A) allowing introduction of food into the digestive system B) house the special sense organs C) protection of the brain D) providing passageways for respiratory gases to move into and out of the body
Atrial natriuretic peptide (ANP) is a hormone that is made in the atria of the heart. The influence of this hormone is to ________
A) prevent pH changes caused by organic acids B) reduce blood pressure and blood volume by inhibiting sodium and water retention C) enhance atrial contractions D) activate the renin-angiotensin mechanism
The type of chemical bond formed when ions with opposite electrical charges
attract is a(n) ________ bond. Fill in the blank(s) with correct word
____________________ refers to the chemical attraction of leukocytes to the site of invasion
Fill in the blank(s) with correct word